I booted the system with the flash drive connected and it probed as
sd0, then when I went to unplug it, nothing happened. I plugged it
back in, it came up as sd1, and unplugging that made the system
panic. I also have another panic from a normal sd0 detachment.
umass1 at uhub0 port 2 configuration1 interface 0
umass1: LEXAR MEDIA JUMPDRIVE, rev 2.00/30.00, addr 3
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, 1 lun per target
sd1 at scsibus1 target 0 lun 0: <LEXAR, JUMPDRIVE, 10000> disk removable
: at uhub0 port 2 (addr 3) disconnected
panic: config_detach: forced detach of failed (45)
Stopped in pid 5.1 (usb0) at netbsd:cpu_Debugger+0x4: leave
panic+0x11d
config_activate
usb_disconnect_port+0x9c
uhub_explore+0x21d
usb_discover+0x36
usb_event_thread+0x5d